PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12051Screw,cap,socket Head

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5305-00-789-0694 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-789-0694 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-789-0694. Primary manufacturer part number: 12051.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3A A
  • Fastener Length: 0.250 INCHES NOMINAL IN
  • Thread Length: 0.250 INCHES MAXIMUM IN
  • Hardness Rating: 37.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
  • Minimum Yield Strength: 160000 POUNDS PER SQUARE INCH LBS
  • Head Height: 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8650 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-789-0694, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-789-0694
Primary Part Number12051
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Class3A A
Fastener Length0.250 INCHES NOMINAL IN
Thread Length0.250 INCHES MAXIMUM IN
Hardness Rating37.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
Minimum Yield Strength160000 POUNDS PER SQUARE INCH LBS
Head Height0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
Internal Drive StyleHEXAGON
Head Diameter0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Head StyleFLAT CHAMFER
Thread Quantity Per Inch32
Width Across Flats0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-624A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A
Nominal Thread Diameter0.164 INCHES IN
MaterialSTEEL COMP 8650 OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6680-00-010-13771205-1 INTERCHANGEABLE
Indicator
Mission Systems Davenport Inc.
5895-00-034-4985SMC423275 INTERCHANGEABLE
Sweep Generator Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2530-00-040-2687 INTERCHANGEABLE
Detent Plate
6625-00-070-4530634-15639 INTERCHANGEABLE
Ammeter
Phaostron Instrument and Electronic Company
3110-00-070-5462 INTERCHANGEABLE
Retainer,ballbearin
5930-00-132-8275634 INTERCHANGEABLE
Switch,push
Edwards Signaling and Security Systems a Part of Ge Security
4730-00-222-1798AS5183D1212 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Sae International Dba Sae International
5110-00-234-65555110-01-434-9891 INTERCHANGEABLE
File,hand
General Services Administration Federal Supply Service
8345-00-263-2523 INTERCHANGEABLE
Flag,national
8345-00-264-2633 INTERCHANGEABLE
Flag,national
Cross-Reference Index
Part NumberManufacturer
P92367 Jlg Industries, Inc. (USA)
12051 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
634 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
P92367 Lull Lift Corp Dba Omniquip Parts Worldwide (USA)
12051 Stanadyne Corporation Dba Stanadyne Diesel Systems (USA)
Related Parts
6680-00-010-1377INTERCHANGEABLE
INDICATOR
1205-1
5895-00-034-4985INTERCHANGEABLE
SWEEP GENERATOR SUBASSEMBLY
SMC423275
2530-00-040-2687INTERCHANGEABLE
DETENT PLATE
6625-00-070-4530INTERCHANGEABLE
AMMETER
634-15639
3110-00-070-5462INTERCHANGEABLE
RETAINER,BALLBEARIN
5930-00-132-8275INTERCHANGEABLE
SWITCH,PUSH
634
4730-00-222-1798INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
AS5183D1212
5110-00-234-6555INTERCHANGEABLE
FILE,HAND
5110-01-434-9891
8345-00-263-2523INTERCHANGEABLE
FLAG,NATIONAL
8345-00-264-2633INTERCHANGEABLE
FLAG,NATIONAL
5910-00-323-0280INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
12051
5330-00-339-2437INTERCHANGEABLE
RETAINER,PACKING
634BRZ

Frequently Asked Questions

What is NSN 5305-00-789-0694?

NSN 5305-00-789-0694 is a Screw,cap,socket Head, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-789-0694?

NSN 5305-00-789-0694 has 5 cross-referenced part numbers: P92367 (Jlg Industries, Inc.), 12051 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 634 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), P92367 (Lull Lift Corp Dba Omniquip Parts Worldwide), 12051 (Stanadyne Corporation Dba Stanadyne Diesel Systems).

What NSN replaces 5305-00-789-0694?

There are 12 known substitutes for 5305-00-789-0694: 6680-00-010-1377, 5895-00-034-4985, 2530-00-040-2687 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12051?

Key specifications for 12051: Thread Direction: RIGHT-HAND; Thread Class: 3A A; Fastener Length: 0.250 INCHES NOMINAL IN; Thread Length: 0.250 INCHES MAXIMUM IN. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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